Computer Support Forum

Need help in changing BIOS settings from legacy boot to UEFI boot.

Question: Need help in changing BIOS settings from legacy boot to UEFI boot.

After running MBR2GPT on my system with a successful completion, I realized that I don't know how to change the BIOS from legacy to UEFI, resulting in the inability to boot the GPT'ed system. I was running Windows 10 Creator on an MBR system using an MSI H61M-E23 (version 2) motherboard. I made the mistake of thinking that setting the boot mode to UEFI would be easy - I tried setting the first boot device to UEFI, but that did not work. The system does not boot - all I get is a blinking cursor. Any help would be appreciated.

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Preferred Solution: Need help in changing BIOS settings from legacy boot to UEFI boot.

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Due to the issue with Windows 7 being too dark on the Ideapad S400 (backlight issue), I decided to roll back to windows 8. To install Windows 7 from our deployment server I changed the BIOS to Legacy Support., but then to install Windows 8 I changed the BIOS back to UEFI but now under FI (Boot) only the network card is listed and not the hard-drive. If I roll back to BIOS to legacy then the hard-drive is listed as a boot device. Sound like a bug. I really got the feeling that the BIOS of the Ideapad S400 is a beta. Will Lenovo issue a BIOS update in the near future? This is the worse laptop I've even seen so far!  













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Answer:hard-drive not listed in BIOS after changing boot mode from Legacy to UEFI.

hi bthjf1,
 
AFAIK, to see the HDD under UEFI boot on the BIOS, you must install Windows 8 in UEFI (HDD being formatted as GPT).
 
Try to:
1. Install Windows 8 in UEFI as stated in this guide.
2. Boot into the BIOS, press F9 to reset BIOS to default then check if HDD is now listed under EFI boot
 
 
Hope this helps

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The problem started when i changed to legacy mode when windows installation started giving me trouble.What i think would fix the problem is to either change back to UEFI mode from windows, or to get in the BIOS menu somehow..Does anyone know how to do either of those things? any other ideas are more than welcome

Answer:z580 can't access bios setup or boot menu after changing to Legacy from UEFI mode

Anyone? u_uI was under the impression this community contained some Lenovo experts..

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I own a Acer F5 573g-59V4. My laptop windows under went a problem, so I had to reinstall it. I installed windows using a bootable pendrive. My laptop didn't boot from my pen drive in UEFI mode, so I changed to legacy mode and installed windows. Now, I want to change to UEFI mode.Now, when I changed from legacy to UEFI in BIOS, it doesn't boot windows, instead it shows " No bootable device detected "What to do ????How to change to UEFI mode without affecting my windows ?

Answer:Changing boot option from legacy to UEFI

Hi,You have to install the OS in UEFI mode, follow the instructions here:https://www.reddit.com/r/Windows10/comments/3s7ieq/convert_windows_10_from_old_mbr_bios_to_uefi/

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so the only way i could figure to boot from media at clean install was to boot from legacy mode.... is there an "easy" way to swap the boot from legacy to uefi? i'm only asking because it takes about 3 minutes to boot from legacy instead of 20 seconds and my ssd drive is missing??













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Answer:Legacy bios boot vs uefi

First of all, which media are you booting from? What is your OS?

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At any point in the future, is a new BIOS/UEFI firmware going to be released that unlocks the selection for "UEFI" on the boot mode? I have an operating system/bootloader that would be better served with the ability to switch to a legacy BIOS style mode as opposed to being locked into UEFI only. Consider this a formal request as well, to include a legacy boot mode in a future release. I know there's quite a few of us who would consider this a very useful change.

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We are pushing a new image this summer but we need to make boot and file system changes, my boss wants me to automate this process. the goals are to desable legacy in bios, enable UEFI, select PXE,  change UeFI boot order (usb,cd, NIC, Hd) using the Bios configuration tool at command line. I have the config.ini file from the bios. can I make all those changes at once or do I have to reboot in between enable UEFI and changeing the boot order The why: we are moving from MBR to GPT with the new image Win10, and we save time on the boot by disabling legacy. The boss says so. (the short answer) any tips or suggestions welcome.

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How to Change BIOS MODE from Legacy to UEFI and secure boot state to 'ON' from 'unsupported' in DV6T-6c00 . Can we change BIOS version from 2.1 to higher version. 3. Can we change Hyper V virtualization enabled in windows 10. ORiginally the pavillion came with 7 home edition.

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Hey guys, I already tried to post this question on another forum, they tried but then they send me here and maybe you can do something for my problem.
Here is the original thread, https://answers.microsoft.com/en-us/windows/forum/windows_10-performance-winpc/missing-operating-system-cant-boot-after-trying-to/f6a82a4c-533f-4447-af4e-94162c78e45d?messageId=f8ab0de2-f35d-4648-9ba2-fe5bc6bdbb3a
My last question is from yesterday but I still want to try asking you too just to save time eventually.. so in the last one I put interesting info cause I can boot in the windows installation section AND open cmd.

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We are pushing a new image this summer but we need to make boot and file system changes, my boss wants me to automate this process. the goals are to desable legacy in bios, enable UEFI, select PXE,  change UeFI boot order (usb,cd, NIC, Hd) using the Bios configuration tool at command line. I have the config.ini file from the bios. can I make all those changes at once or do I have to reboot in between enable UEFI and changeing the boot order The why: we are moving from MBR to GPT with the new image Win10, and we save time on the boot by disabling legacy. The boss says so. (the short answer) any tips or suggestions welcome.

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I bought a ThinkPad 540p that comes with preloaded Windows 8.1. As I want to dual boot the machine I tried to select the Legacy Boot option in the BIOS/Startup tab, but I can't do anything as the option UEFI/Legacy Book is greyed out and locked in "UEFI Only". Below it there is an option called: -CSM Support that is also greyed out and selected as [No]. (below  these options there is a little note with an asterisk saying "Unselectable for Secure Boot"). How can I enable the UEFI/Legacy Boot option again in order to dual boot the computer? I want to be able to boot from USB or from the CD Drive.   Thank you very much for helping me out!     













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Answer:Unable to select UEFI/Legacy Boot in BIOS / Startup - ThinkPad T540p

Hello and welcome,
 
I'm not sure where it is in your BIOS (security tab maybe) but there should be an option to turn off secure boot.
 
Z.

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I am a proud owner of an Satellite A500 PSAR9A-02S001
I have been quite happy with it over the years.

However when trying to dual boot I am running into all sorts of problems.

I really need uefi/legacy boot options to be unlocked in the bios menu
I believe this functionality is present
However there are no options to configure it in the bios, please release an update for this.

Please.

It would help me out a lot.
Not too mention all of the other hidden settings in the bios u could also unlock.
I Would really appreciate any help with this

Message was edited by: Bigwheels

Answer:Satellite A500 - BIOS update request - UEFI/legacy boot option

As far as I know Toshiba doesn't offer some BIOS options modification and this is also not a part of BIOS updates.

What kind of problems do you have with dual boot?
What is preinstalled on your machine? Post please some info about exact OS installation.

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I had to go into the BIOS and change the type from Secure Boot / UEFI to Legacy Boot in order to get the firmware program for my SSD to run from a removable USB drive. No big deal, I figured after the firmware is updated, I'll go in to change it back to Secure / UEFI, right?  Wrong.
So, hours later now, I cannot enter the BIOS at all. During the POST screen, I see the "Press F2 for Setup / F12 for Boot Options" and I even notice that the "F2 for Setup" become highlighted/selected after holding the F2 key down. But, instead of going into the BIOS, it goes to a DOS menu in which you can either select the OS or Windows Memory Diagnostic.  
I ended up doing a clean install of Win 10, and disabled fast boot. That didn't help. Then I thought installing Win 7 would fix it. Nope. Same deal; can't get into BIOS.  I did some googling and found one suggestion to press Alt+F2 and all combinations thereof including F8, ESC, DEL etc - no luck.  Another suggestion I tried was removing the CMOS battery / unplugging the SSD / laptop battery in order to force it to a hold POST screen.  What happened then after pressing F2 was lots of beeping and a Boot from PXE menu came up (Bizarre).
Any other suggestions?  I can use Windows but Win 10 doesn't have full functionality without UEFI / Secure Boot enabled. And I'd hate not being able to access the BIOS or boot menu forever.  I hope some Dell expert can help me get in to th... Read more

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I had to go into the BIOS and change the type from Secure Boot / UEFI to Legacy Boot in order to get the firmware program for my SSD to run from a removable USB drive. No big deal, I figured after the firmware is updated, I'll go in to change it back to Secure / UEFI, right?  Wrong.
So, hours later now, I cannot enter the BIOS at all. During the POST screen, I see the "Press F2 for Setup / F12 for Boot Options" and I even notice that the "F2 for Setup" become highlighted/selected after holding the F2 key down. But, instead of going into the BIOS, it goes to a DOS menu in which you can either select the OS or Windows Memory Diagnostic.  
I ended up doing a clean install of Win 10, and disabled fast boot. That didn't help. Then I thought installing Win 7 would fix it. Nope. Same deal; can't get into BIOS.  I did some googling and found one suggestion to press Alt+F2 and all combinations thereof including F8, ESC, DEL etc - no luck.  Another suggestion I tried was removing the CMOS battery / unplugging the SSD / laptop battery in order to force it to a hold POST screen.  What happened then after pressing F2 was lots of beeping and a Boot from PXE menu came up (Bizarre).
Any other suggestions?  I can use Windows but Win 10 doesn't have full functionality without UEFI / Secure Boot enabled. And I'd hate not being able to access the BIOS or boot menu forever.  I hope some Dell expert can help me get in to th... Read more

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Hi all, I've been a long-time reader of this forum, but this is my first message. I bought last year a T420 from eBay and promptly installed Ubuntu on the HDD. Last week I bought a Samsung mSATA SSD to reinstall Ubuntu on it and use the HDD as data disk. I took the opportunity to test UEFI and enabled UEFI in the BIOS. The installation was successful but when I plugged it to the dock station I lost the USB connectivity (no USB keyboard or wireless mouse), so I decided to revert UEFI to "legacy" and reinstall it. To my surprise, once I reverted to "legacy" boot I lost the ability to boot from any of the possibilities: the original HDD or even the Ubuntu DVD install media. I've played with all the BIOS options, going back to UEFI boot, and it doesn't even detect now my installation on the SSD  I went yesterday to an official Lenovo shop and they told me it was a software issue and that reverting back to BIOS should be enough, so I downloaded the "BIOS Update Bootable CD" from: http://support.lenovo.com/us/en/downloads/migr-77076 but it doesn't boot either, so I'm really stuck and any help would be greatly appreciated!  Thanks in advance.Pablo

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Is there currently any way to configure a custom boot logo for UEFI booting? I can only find methods for Legacy users, but no luck with UEFI.

I'm kind of new to custom boot logos, so if anybody could give me some information as to if it's possible first?

Regards

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Is there currently any way to configure a custom boot logo for UEFI booting? I can only find methods for Legacy users, but no luck with UEFI.

I'm kind of new to custom boot logos, so if anybody could give me some information as to if it's possible first?

Regards

Answer:Custom Boot Logo Windows 10 UEFI Boot Method? (Non-Legacy)

You can change the boot logo in UEFI mode by modifying the relevant ACPI table (BGRT) with an EFI application before booting. AFAIK, the only application for this is currently my own, HackBGRT. (Open-source and all, so I certainly hope this doesn't count as advertising.) Be sure to tell if you find any other choices.

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Heys guys, I'm hoping I can get some help with this. I have a Lenovo y410p. It has 2 drives, one with the OS (120GB SSD 40mm N.2 NGFF) and a data drive(1TB HDD)
My computer recently crashed when I was installing a piece of software, (Bentley MX Road, it's a road alignment package.) When I restarted my laptop I was greeted with a lovely message informing me that winload.efi was corrupt. That was fine so I did a bit of research to fix it involving getting a recover DVD and going to the command prompt to rebuild BCD. That didnt work for me as it didnt detect windows. I tried to see what was up with the SSD using DISKPART & CHKDSK. Neither of these showed the SSD. They only showed the HDD
So now to take a step back, In order to get the recovery DVD to boot I had to change the boot option in the BIOS from UEFI to legacy support. This showed me a list of bootable devices (HDD, SSD, DVD etc.) When UEFI is selected only one option is available which is the Windows boot manager. This is followed by the serial number of the HDD which does not have any OS on it.
I have tried using f12 which give me the windows boot manager option and nothing else. When I select this, it boots me into the error message.
So to get to the root of this, how can I change the boot order when the BIOS is set to UEFI so I can repair the winload.efi file on the SSD. Thanks for any help.

Answer:Changing boot order when BIOS is set to UEFI

You change it the same way as before. Usually you can do it withe the OEM software installed on Win8.

You may have to turn off Fast Boot if set.

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We are now migrating from Windows 7 to Windows 10.With windows 7 we were running legacy BIOS. Now with Windows 10 it is UEFI and Secure Boot on all machines before deployment of operating system. I have configured the BIOS settings exactly as i wanted on one machine. (UEFI, Boot Order, Secure Boot Enabled)Then i have used CFGWIN.exe to export my settings to a txt file CFGWIN.exe /c /path:c:\settings.txt Now i want to use this configuration on all other Lenovo computers, without going in to BIOS and change all settings manually. So in my OS deployment i run:CFGWIN.exe /r /path:c:\settings.txt (after that i reboot the computers and continue with OS deployment) But BIOS are not set to UEFI, Secure Boot is still disabled? Please help! Sorry Wrong Thread, how do i change?

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We are now migrating from Windows 7 to Windows 10.With windows 7 we were running legacy BIOS. Now with Windows 10 it is UEFI and Secure Boot on all machines before deployment of operating system. I have configured the BIOS settings exactly as i wanted on one machine. (UEFI, Boot Order, Secure Boot Enabled)Then i have used CFGWIN.exe to export my settings to a txt file CFGWIN.exe /c /path:c:\settings.txt Now i want to use this configuration on all other Lenovo computers, without going in to BIOS and change all settings manually. So in my OS deployment i run:CFGWIN.exe /r /path:c:\settings.txt (after that i reboot the computers and continue with OS deployment) But BIOS are not set to UEFI, Secure Boot is still disabled? Please help!

Answer:Update BIOS settings LEGACY to UEFI (ThinkCentre M...

What version of BIOS are on?   Are all the computers on the same? 

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Hi, I bought a Lenovo Thinkpad Edge E320 with 128GB SSD but without OS. I installed Windows 7 and ubuntu and had issues with dual booting because of the UEFI. So I decided to change from UEFI to legacy mode in bios. After that I cann't enter BIOS any longer. If I press F1 on start I get "Entering BIOS Setup" but the BIOS doesn't open instead immediatly Windows starts. The same with F12 to select the boot drive selection the message appears but the menu doesn't open instead Windows starts. How can I enter again the BIOS or reset the options? I tried BIOS Update with BOOT Cd from Lenovo support site but it didn't help. Thank you for advice Best regards bubbas

Answer:Edge E320, can't enter bios after changing from uefi to legacy mode

Hi bubbas and welcome to the Community,
 
This is a long shot, but take out the hard drive, the battery and unplug the ac adapter and hold the power button down for about 15 seconds.
 
Then plug in just the ac adapter without the battery or hard drive and start the machine and see if you can get into the bios.
 
If you can, reload the defaults and reboot.  See if you can get in again and you might want to check the F12 to see if that works.
 
Dave

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I have a Thinkpad T430u and I am unable to get a bootable USB flash drive to boot. I have made the bootable drive in PowerISO, I have used Window's tool, and I have also tried the following (suggested on these forums): "Create another flash drive with a single FAT32 partition using DISKPART in a command windows:  list disk, select disk, clean, create partition primary, format fs=fat32 quick, assign. " But that didn't work either. Nothing I have done has allowed me to boot to the USB flash drive. The flash drive isn't the problem, because I can boot to it on my other computers. I have turned UEFI/legacy boot to both, as well as to Legacy only, and that doesn't help. I have turned off secure boot, and that didn't help either. I have searched a lot and tried everything out there.. but nothing works. I even bought a USB DVD drive to test and see if I could boot to a burned DVD and that didn't work either. I am able to reach the BIOS settings as well as the boot device menu, but the only options available are ATA HDD and PIC Lan boot.. the flash drive never shows up as an option. I have moved USB HDD and USB FDD to the top of the boot order in bios but that doesn't help either. Any suggestions? BTW I have tried Windows 7 and 8 ISOs, as well as a Linux distrubtion and various bootable partition utilities.. I even tried Lenovo's own UEFI diagnostic created with Lenovo's bootable USB generator.. nothing will boot.

Answer:Thinkpad T430u can't boot to USB or DVD.. It's not UEFI/Legacy or Secure boot

Had the same issue. Tried on another T430u, and did the same. Defaulted Bios and checked that secure boot was desabled. It booted from the USB drive straight away.

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Hello, first post here...

First, some context: I have a Dell Inspiron 15R SE that came with Windows 8.

I've managed to get a working dual-boot system with Ubuntu 12.10. I can't remember exactly how I done that, but I remember that I had to disable secure boot. I think that the boot configuration those days was:
Secure boot: DisabledLoad legacy option rom: EnabledBoot list option: Legacy

This "configuration" worked perfectly for 6-7 months.

Then, one day (last week, can't remember the exact day), when I was using Windows 8 the computer crashed. I hard-rebooted and got this screen:

I've searched a lot, looking for solutions and after executed boot-repair from a Ubuntu LiveCD dozens of times I've decided to eliminate Ubuntu temporarily and focus to get a system with Windows 8 working nice.

Then I used my recovery DVDs to recover the system. Yup, Windows has booted. But when I restarted first time I got the same error. Then I, digging a solution, pressed F12 after a reboot and got here:

The highlighted option allows me to boot into Windows 8. So I went to boot options (F2) and changed the following configuration:
Load legacy option rom: DisabledBoot list option: UEFI

Now I can boot directly to Windows without need to press F12.

But my objective isn't complete. I want to erase all Ubuntu entries from the seconds image and restore the legacy boot from the first imagem (because they worked before).

I did two things:
I erased all partitions related to Ub... Read more

Answer:Recover legacy boot and remove old entries from UEFI boot

Are you booting the Start up Repair CD/DVD/USB in UEFI mode.



Try one of those.

From the desktop:
System Recovery Options - Boot to in Windows 8
From the Repair CD/USB:
How to do a Auto Repair:
Automatic Repair - Run in Windows 8
Note: You may need to do startup repair 3 to 4 times.
Startup Repair - Run 3 Separate Times - Windows 7 Help Forums

How do a Refresh:
Refresh Windows 8



How to do a Reset:
Reset Windows 8

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Hello,
I am having problems with direct booting into Windows 8 installed into a VHDX file.
This is a four-partition UEFI boot on a GPT drive. EFI files are residing on a second partition of disk 0 (the ESP partition) in the EFI folder. The boot virtual disk is residing on the fourth partition of that disk 0.
When I turn on the PC, it shows black screen after the BIOS POST screen. No Windows 8 boot menu, no other information is displayed. However, if I press Shift+F12 (or F12) to start Dell BIOS Boot Menu and choose Windows Boot Manager from the UEFI part of
the boot menu, Windows 8 starts to boot without difficulties.
How do I make Windows to boot automatically without having to select Windows Boot Manager in DELL BIOS boot menu?
I believe I messed up with boot sector somehow... What needs to be fixed provided that Windows 8 will boot into VHDX file?
Thank you.

Well this is the world we live in And these are the hands we're given...

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Hi all,

Currently having a wake on lan issue with a certain computer.

The machine is setup correctly but the windows boot information is stored in a 100mb UEFI partition, and when the computer wakes on lan, it will not boot windows, just sit at a blank screen.

When it wakes on lan it is trying to boot from the legacy device (same blank screen happens if you choose to boot from it from bios)

ive tried updating the bios but no luck, all settings seem to be as they should be.

Is there some trick to get it to load the UEFI MBR, or is there a safe way other then reformatting the machine to move the MBR over to the legacy device itself?


Thanks for any help.

Answer:Boot UEFI from wake on lan, or convert UEFI MBR to legacy.

Back up your files, unplug all other HD's and peripherals,

Boot into BIOS setup to enable Legacy BIOS. Next check BIOS Boot order for an EFI Boot Disk: remove it, set DVD drive first to boot, HD second. Then set SATA controller to AHCI. Save changes and Exit.

Then boot into installer DVD or flash stick burned or written using tool and latest ISO for your licensed here.

At first installer screen Press Shift + F10 to open a Command Box, type:

DISKPART
LIST DISK
SEL DIS 0 (after confirming Windows 7 target HD #)
CLEAN
CONVERT MBR
CREATE PARTITION PRIMARY SIZE=102400 (for 100gb partition, adjust as desired)
FORMAT FS=NTFS LABEL="WINDOWS 7"
ACTIVE
EXIT
EXIT

Next click Install Now to Clean Install Windows 7 to the partition you created. If it fails then report back at which step and the verbatim error message.

In addition read over these steps to understand the tools and methods which work best to get and maintain a perfect Clean Reinstall - Factory OEM Windows 7. The steps are the same for retail.

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Hi, I have a HP Pavilion 15 n204tx Notebook with Windows 8.1 running. Now I would like to install a SSD by replacing the optical drive. I am not an expert and I did some digging. I heard that before I install Windows to the new SSD, I should change settings in BIOS to AHCI concerning my hard drive. My Problem now is that I can't find it in BIOS. Where can it be found and maybe changed? Is it really needed to change BIOS mode? What are my alternate choices?

Answer:UEFI BIOS Access, Changing Boot Drive Order To SSD

Hi, No, you can't do that. You have to swap SSD and HDD. Put old HDD to the caddy. Regards.

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I purchased a IdeaPad Z580 laptop, with Windows 8.  The current BIOS mode is UEFI, with Secure Boot State = On.  I am trying to setup a dual boot with Linux Ubuntu or Mint?  Is this possible?  Thank you.

Answer:Ideapad Z580 - turn off Secure Boot State, or change to legacy bios and turn off UEFI?

Yes, I have the same question. Can someone help?Many Thanks in advance.

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how to transfer the boot of windows from legacy support to uefi? 

Answer:trnsfer from legacy boot to uefi boot

Hi, It may depend on how the existing installation was performed - let me know the following. Hold down the Windows key and press R Into the Run window, type devmgmt.msc and hit enter. In Device Manager, expand Disk drives, right click the ssd and select Properties - select the Volumes tab and then click the 'Populate' button. What is listed as the Partition style? Regards, DP-K

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Just bought a Dell Optiplex 7010 Mini-Tower with Win 8 Pro 64-bit, 8 GB RAM, 500 GB hard drive and an Intel i5 3470 processor. Right now, it has Dell BIOS version A16.

It is normally in UEFI ON and Secure Boot ON, so that F12 on bootup (one-time boot options) does NOT normally show the CD-DVD as a boot option. OK - no problem.

However, if I reboot with F12 and select both UEFI OFF (meaning Legacy ON) and Secure Boot OFF and reboot, then F12 DOES show me the CD-DVD as a boot option, but if I actually try to boot up from a bootable CD, I get an error message.

I have practiced with two bootable CDs - a Knoppix and an Aomei Backupper, both made on earlier machines. Both these CDs work as boot-up CDs in my old XP machine, and the Aomei Backupper CD also worked in someone else's Win 7 Pro 64-bit machine.

What's wrong?

Again, please let me repeat that I am trying to boot from the CD-DVD AFTER I have turned OFF UEFI, turned ON Legacy and turned OFF Secure Boot.

Thanks.

Answer:No Legacy boot from CD-DVD - UEFI and Secure Boot are OFF

https://www.404techsupport.com/2013/...all-windows-7/

But if you're using those settings, Windows 8 will not start.

Here is more info: Legacy BIOS Boot Mode (installing using the MBR partition style) and UEFI Boot Mode (installing using the GPT partition style): link

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So I have a 100-15iby that's out of warranty, so I decided to try Linux on it (works great, unless you leave it doing a distro upgrade overnight and a power outage happens and the battery dies, requiring a reinstall) So I go to re-install and I try and boot from the USB, and it says "Boot from USB <Verbatim Store-N-Go> has failed".  This raised an eyebrow, and I thought it might be a bad thumb stick, so I try another, a Kingston drive. I load up the boot menu and the option for USB says "EFI USB <Verbatim Store-N-Go>", which is weird because any other time I've tried to boot from this Kingston drive it said the name of the Drive next to the USB option. Tried to boot using Legacy mode, but that only brought up the UEFI boot menu, it was at this time that I noticed that the UEFI Bios isn't saving settings.  So I take the laptop apart, pop the CMOS battery out, hold the power button for 15 sec to hard-reset, then power on/off for good measure, put the battery back in, closed the laptop up and powered it back on. And the Settings were still there! GRRRR... It still boots into Windows fine, so I know the laptop is working, so at this point I'm thinking the CMOS battery is dead (which if this was the case, I should have been able to clear the settings, but no dice), or there's something wrong with the Bios or Mobo. I can't revert the Bios because the setting for allowing a reversion is disabled and can't be enabled to al... Read more

Answer:100-15iby Won't boot from USB, UEFI Bios won't save settings

Anyone? Still need help.

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WIth the T410/T510 I could use the SetConfig.vbs to change the boot order in BIOS.  However with the newer laptops (T420, T520, X220) that have the UEFI BIOS the SetConfig.vbs doesn't seem to work.  Is there another way of scripting the boot order change?  I also tried running the ListAll.vbs and didn't see anything related to the boot order listed in WMI. Any suggestions would be greatly appreciated.













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Answer:T520/T420 UEFI BIOS Management - Changing Boot order

First, please make sure you are using the latest BIOS version for your system.  I know that a bug about changing BootOrder has been fixed in a recent update. Also, while the scripts themselves have not changed, the list of available settings and values has (in some cases), so please refer to hrdeploy_en.pdf at the following website http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=lenovo&lndocid=MIGR-68488 If you still have problems, please post back with your MTM, BIOS version, and exactly how you are calling setConfig.vbs and I'm sure we can get to the bottom of it. 

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Hi everyone, I'm trying to set up a dual boot on my X220, but can't seem to get it working.I tried to follow the tutorials available on ThinkWiki about SSD partitions and optimization, but it didn't work.Also, I'm a bit confused between MBR and GPT, and UEFI and LEGACY, and Syslinux and Grub.From what I read, it seems we're supposed to use GPT partitions with UEFI boot, which is what I'm trying to set up. Have any of you successfully set up a dual boot Linux (Arch) + Windows (7 home) on SSD and HDD?If so, could you give me the options you chose for partitioning and boot? I'm thinking about a UEFI boot with GPT partitions.For Linux, / (root) and /home on the SSD, and var on the HDD.For Windows, I don't know. Should I install the whole OS on the SSD, and give it access to a DATA partition on the HDD? I'm aware my post doesn't provide much information about my issues, but what I'm looking right now is a configuration that is known to be working on the X220, and on which I can focus my work. Also, the configuration should minimize the number of read and write on the SSD. Thank you 

Answer:Dual Boot on SSD + HDD: MBR/GPT? UEFI/LEGACY?

I'm not too used with uefi machines, but what I'm doing usually is to install grub at the start of the linux partition, not on the mbr (say  on /dev/sda3 not on /dev/sda) then I use easybcd (from windows) to add the linux partiton (and any other OS) to the standard win7/win vista bootloader.

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If your PC or laptop supports UEFI and legacy mode then the following tips may help you. Legacy enabled:If the bios setting is legacy enabled then hard drives and USB devices will normally boot.  If you are using two independent hard drives that are not connected by boot manager then the UEFI boot hard drive will always boot first before the legacy hard drive unless the bios allows you to change the boot priority. Legacy disabled (UEFI mode):If the bios setting is legacy disabled then only UEFI devices will boot.  You may run into no hard drive selection menu, no boot option menu or Boot Device not Found followed by a message Hard Disk (3f0). USB flash drives boot considerations:If you wish to boot up a USB flash device using Windows 7 repair, Windows 8 repair, Windows 7 or Windows 8 installation media then be sure to create the flash drive formatted as FAT32.  You may notice a bootable flash drive showing twice in the boot menu, one marked UEFI and one not marked UEFI.  Both will boot up. The popular MS Windows 7 USB WIndows installation media creation tool will create a NTFS flash drive using a Windows 7/8 iso file in NTFS format which is not bootable in UEFI mode. It works fine in legacy mode.  To get around the NTFS issue, create the flash drive in NTFS then copy the contents to your hard drive, quick format the flash drive to FAT32 and then copy back the contents back to the hard dr... Read more

Answer:Boot UEFI or Legacy ---- tips

Thank you for this sir.   I have legacy enabled and I still can't boot from the DVD ROM even when I press f(9).  I have secure boot turned off.  Anyone know what the problem is?  

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Relevance 94.3%

Hi, My comany is purchasing HP EliteDesk 800 G2, some comes with HDD and some with SSD.We deploy Windows 7 x64 using SCCM using legacy boot. On a machine with HDD installed I can configure the boot options to use legacy boot, but when I replace the disk to a SSD drive the only boot option for this drive is UEFI.That causes the deployment to fail because the drive need to be partitioned as GPT.On the other hand, if I disable legacy boot, PXE boot to UEFI and partition the disk as GPT, after the image deployment the disk is unable to boot with 0xc000000d error (I imagine the cause is Windows 7 support becuase it does work on Windows 8.1). Bottom line, I can install Windows 7 on a HP EliteDesk 800 G2 only if legacy boot is enabled and I partition the disk as UEFI.Is there any way of forcing the SSD to boot as legacy and not UEFI?Is this issue caused by the workstation or is it enforced by the SSD? thanks.

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Relevance 94.3%

I have disabled the secure boot option and enabled the Legacy boot option which allows me to boot from USB stick. However, UEFI takes precendence over Legacy boot and I don't want that. For a little school project that we are running we want to run the educational OS Sugar on Stick(on a USB stick) to run straight from the stick instead of kids pressing 3-4 different buttons to get to that.  In short, I want to change boot priority from UEFI first to Legacy. Let me know how to do it? Whether its possible or not? If not, then I don't need these 4 laptops that I ordered and I will return the laptops. Thanks a lot in advance. -Ritesh

Answer:UEFI vs Legacy Boot order

Follow these instruction on how to properly disable secure boot:http://support.hp.com/gb-en/document/c03653226

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Relevance 93.07%

hello!
my boot mode is set uefi with legacy oprom and I don't seem to have graphic options available on it..except ''dvmt preallocated'' I want to switch my boot to much more better...which should be the better option for it...I'm using asus vivobook x456ur ?

Note: I cant see boot option to set from uefi to legacy uefi or legacy
 

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I know how to change my options from UEFI to legacy but the legacy option isnt coming up. Someone please help me as i need to reboot my laptop.

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Is it "normal" that the M.2 slot on these is only bootable in UEFI mode? I wasted my last day installing Mint 18.1 about 20 times with different bios settings, 2.5" SSDs, M.2 SSDs, etc. The M.2 slot functions fine regardless of whether the notebook using Legacy or UEFI mode, and I can install whatever OS to the drive without issue, however the system won't boot to the M.2 SSD when set to Legacy mode... and this isn't an NVMe SSD, it's M.2 SATA.  Legacy works with the 2.5" SSD fine. Thanks

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Relevance 93.07%

I'd like to change it to UEFI because it boot faster than legacy. But whenever i change it it shows no bootable device. Also i would like to ask what's the difference between the two

Answer:I have installed windows 10 in Legacy boot instead of UEFI

Convert Windows 10 from old MBR (BIOS) to UEFI : Windows10

Convert Disk between MBR and GPT in Windows 10 without Data Loss

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Is  B50-70 boot default UEFI or legacy mode?

Answer:Is B50-70 boot default UEFI or legacy mode?

Hi  lenovoman123, Good to have you back. If the system is using Win8/8.1/10 UEFI would be the choice, anything else I recommend using Legacy. Cheers,





Did someone help you today? Press the star on the left to thank them with a Kudos!If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"

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Relevance 93.07%

My computer is a (Canadian) HP G60 laptop with a Phoenix BIOS, and after I changed the BIOS boot order in the settings menu (to, unsuccessfully, boor Clonezilla from a flash drive), the BIOS starts, but Vista doesn't load. I only see a blank (black) screen after the BIOS menu.

I forgot what I specifically did, but could anyone tell me what I did wrong and how to recover the computer?

Answer:Vista won't boot after changing BIOS settings

Put the hd back at the top of the boot device order.

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Relevance 93.07%

I changed the boot settings in my bios to boot off a USB recovery drive since my Windows boot loader wasn't working and now the bios won't even load. Turning the power on starts the computer but nothing displays on the monitor. I've never felt so perpetually screwed in my life. Any help would be appreciated.
 

Answer:Bios won't load after changing boot settings

What id recommend you do is reset bios to default settings. To do so, shut your computer off, take out cmos battery and reinsert it. This will reset your bios to default settings. Report back if this solved your problem.
This will determine if the bios change is the primary cause to your blank screen of not.
 

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Relevance 92.25%

Tried various search terms, but nothing came up.

Upgraded to windows (from factory default windows 8) 10 while it was still free. Wiped the drive and tried to reinstall windows 10 (home) and all I got was an error saying that can't install on non gpt partition. Turns out the only way can figure out how to boot usb is via legacy mode. Plugged hard drive into desktop machine and says all the partitions are in fact gpt. Used rufus to burn image to usb, made sure that is gpt as well. For fun, tried the system restore function, but fails right away. I just deleted the windows partition (not the entire drive).

Was playing around with settings in the bios:

Insydeh20 setup utility. gpt option (usb) - select option
Get his popup -> input file path?

Answer:how to boot usb in uefi mode (not legacy) for inspiron 3531

When you reinstall there are some critical partitions.  You cannot leave any of those of the drive and reinstall Windows 10.  Data partitions should be OK.
To boot a USB drive as UEFI, assuming your system has that capability, you have to format the USB drive as FAT 32.  It must use an x64 bit version of Win 10.
When you boot you should be able to see a Boot Device Menu.  Look for something that shows as UEFI and boot to that.  If you don't see a UEFI option, the Bios may be set incorrectly or the USB drive is not configured correctly.

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Relevance 92.25%

Hello,
I have MSI UEFI Mobo, when I try to boot on my Hard Drive in BIOS, it gives me: "Restart and select proper boot device" but I can boot using UEFI Windows Boot Manager, so I want to add legacy boot besides UEFI Boot. Thanks a lot.

Regards,
addas

Answer:Q:Add Legacy Boot Windows 8.1 in UEFI Motherboard(GPTDisk)

Hello Addas,

If you like, you could use the tutorial below to disable the modern "Choose an option" screen to have the old legacy "Windows Boot Manager" while still using UEFI firmware.

Startup Options - Enable or Disable in Windows 8

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Relevance 92.25%

When i try and boot my Windows 7 x64 DVD in UEFI mode my computer completely skips it and boots my hard drive. However when I boot in legacy mode i can boot the CD but i get the error 'Windows cannot be installed to this disk. The selected disk is of the GPT partition style'. I'm assuming i get this error because i'm not booting via UEFI mode.

Answer:Windows 7 Installation CD - Can boot in Legacy mode but not in UEFI

Where do you buy your Windows 7 DVD from?

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Relevance 92.25%

My Lenovo G505 laptop running Windows 8.1 gave me error messages that say:"EFI Network 0 for IPV6 boot failed.""EFI Network 0 for IPV4 boot failed.""Default Boot Device Missing or Boot Failed. Inset Recovery Media and Hit any key. Then Select 'Boot manager' to choose a new Boot Device or to Boot Recovery Media"Then it goes to the boot option menu and gives me a list of the two boot options:"EFI Network 0 for IPV4""EFI Network 0 for IPV6"with no option to select the HDD despite BIOS being able to detect it.I changed the boot mode to Legacy Support from UEFI, and this time on the boot option menu I got a choice to boot from the HDD or the ODD. When I chose to boot from the HDD I got another message saying "Check cable connection!" PXE-MOF: Exiting Intel PXE ROM."I tried to boot Ubuntu from a flash drive and from a CD, but I still got the same result as when I tried booting from the HDD.I think the problem is that my Laptop won't boot in legacy support, but when I use UEFI I only have the option of booting from the network. I have no idea how I could fix this, so any suggestions are appreciated.

Answer:Lenovo G505 Will not boot in UEFI or Legacy Suppor...

hi MattQE,
 
Welcome to the Forums.
 
Just to verify, is the unit originally Windows 8 and this problem occured after you upgraded to Windows 8.1? Any changes that you made to the machine before the problem occured?
 
From the looks of it, this seems like a hardware failure but can you try the following:
1. Boot into the BIOS and set the following options (if applicable):
 
Security Tab:
Secure Boot = Disabled
 
Exit Tab:
OS Optimized Defaults = Other OS / Disabled
 
2. When done, press Fn+F10 to save and exti and observe.
 
 
Let me know how it goes.
 
Regards

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Relevance 92.25%

Hi all,
I currently own two latitudes; a dell Latitude E6540 and a recently picked up Latitude D630. Am I able to use UEFI on the D630, first of all, and for the E6540, how to switch boot modes? (I'm running Windows 10, though he came to me running 7). I tried simply toggling the setting in BIOS but after doing so, I'm greeted with the nice message of no boot device found (even when my technician friend messes with it, he gets the same thing). Suggestions would be excellent. Thanks.

Answer:How to successfully toggle a latitude's boot from Legacy to UEFI?

The D630 does not have UEFI - it's BIOS only.
To change from UEFI to legacy or vice versa, the hard drive needs to be repartitioned and Windows needs to be reinstalled.

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I have a conputer with windows 10 in default but i downgraded it to win7 because i like win7 more than 10 so i change the boot from uefi to legacy but since my drivers arent compatible i try to change it back to win10 using the iso i downloaded from microsoft sites, and i burn it using rufus. But it cant be recognize in uefi. Need help asap

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Relevance 92.25%

HP notebook 2000 model tpn-l108
Windows 8

Having an issue loading windows. Father-in-law bought this refurbished on ebay. Worked fine when he received it. My sister-in-law was installing a printer software and after it downloaded and rebooted it froze on blue screen with please wait. She left it that way for hours then finally powered down and restarted only to come to the same screen. I received it from there. I started by loading setup and doing a HDD scan everything looks good, but still please wait. Restored factory defaults and now it loads to boot device not found. Changed UEFI to Legacy and it loads windows only to come back to please wait. Tried f11 to recover but doesn't load recovery info. Tried using a repair disk from win7(still in legacy because UEFI wont load from dvd) that got me to system repair but could not self repair. I would do a clean install to win7 but I don't have a windows key sticker on the bottom of the laptop. Where do I go from here?

Answer:boot devicenot found using UEFI/will load using legacy BUT

edit: System Restore - How to Do in Windows 8

- Start the computer from the Windows 8/8.1/10 installation media.
- Select Repair your computer (see screenshot below) > Troubleshoot > Advanced options > System Restore.

How to boot into Safe Mode from the Windows 8/8.1/10 installation media or recovery USB flash drive. -> link

How to download and clean install Windows 8.1 if you have an OEM computer with UEFI firmware (BIOS) embedded Windows 8/8.1 product key. -> link

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Relevance 91.84%

Alright changed a few settings in the bios last night and now when I boot I get a black screen lights flash and that hard drive light comes on but nothing on screen.

There was no password on bios,... how would I reset BIOS to normal?

I put a windows disk on I can hear the disk spinning but nothing on the screen

(I think I have come to the right place on the forum)

It?s a Toshiba Satellite Pro L40 model psl4be.

Thanks

Answer:Satellite Pro L40 wont boot after changing BIOS settings

>There was no password on bios,... how would I reset BIOS to normal?

You can set the BIOS to default ONLY inside the BIOS? so you have to access the BIOS pressing F2 or at the beginning of the booting order?

But I doubt that this problem is related to the BIOS.
Maybe it?s just a simple ?bad? luck that this issue happened just exactly after changing something in BIOS.

Try to connect an external monitor and check if you can see something on 2nd display.

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Relevance 91.84%

I had to buy a new (SSD) HD and had trouble booting from a disc until I enabled Legacy Mode and disabled Secure Boot in BIOS. Boot orders in both UEFI and Legacy are the same, with DVD Rom set to boot first. Also, the settings for IPV4 and IPV6 are set to IPV4 (Legacy) when they were once set to BOTH IPV4 AND 6 and are unable to be changed, if that's important. Now whenever I boot up I always get a "No Boot Device Found" message until I hit "Enter" at which point i'm allowed entry into my precious Win10 laptop.  I disabled Legacy in BIOS, but then i get a different "No Boot Device Found" error, and hitting "Enter" doesn't help. Could some kind person tell me how to correct this, and possibly why it happened and the differences in each option? I'll settle for how to correct this, though, with much gratitude.  MUCH gratitude. GN

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Relevance 91.43%

Trying to understand handshaking between UEFI & Win 7. Have Win7 Pro sp1 64 installed on SSD, mb=Asus F2A85-V Pro. Example: boot to flashdrive to do Acronis backup of SSD; remove SDD, insert spinner; boot again to flashdrive to do Acronis restore to spinner (to test backup); remove flashdrive, boot to UEFI, set UEFI spinner as default, save & reset; spinner starts boot (#1), Win logo shows briefly, reboots (#2) and shows Win repair/normal screen; choose normal; Windows desktop shows; new driver is loaded for spinner and asks for reboot (that part I understand); reboot (#3) starts and again briefly shows Win logo before yet again rebooting (#4) to the Win repair/normal screen; again choose normal & all is happy. But then I remove the spinner, insert the SSD, and have to go through the whole deal again. Why so many reboots?

Similarly, if I change any hd/flashdrive configuration, my UEFI boot selection is lost & I have to reset it again - sometimes with the multiple reboot scenerio, sometimes not. Sure wish I could force that the UEFI selection stay there as long as the selected drive is installed.

Answer:UEFI boot keeps changing; UEFI/Win7 handshaking confusion

Hello and welcome diana look I am having a little difficulty in following the train of the thread.

Now do you mean you just backed up the SSD to a USB stick ? then tried to transfer that USB stick back up to the spinner? If it was just a back up then I don't think it is going to work because it is only a backup.

To make the spinner the boot device I would be cloning the SSD to the spinner. I wouldn't mucking around with sticks as I cannot see why that is necessary.

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Recently I played around with dual booting Linux Mint on my system. I decided that I would delete it for the present as I have other things to focus on. However, after deleting partitions and fixing my MBR to only boot windows my UEFI BIOS still has instances of Ubuntu as a boot option. Just for the sake of cleaning my system I was hoping someone could help with this.

My Motherboard is an ASUS M5A97 LE R2.0 with a UEFI BIOS. I'll provide screenshots of what's happening below. (Images were flipped upon upload for some reason)

As you can see there are two ubuntu options for some reason.
I tried to see if BCDedit would allow me to delete these but they didn't show up in BCDedit
I'm not sure where else to look to delete these options in my BIOS.

Thanks in advance for any help

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Relevance 87.74%

Hello.After Windows 10 came out, i noticed that my laptop working and booting not in UEFi mod.First i tried to go into OS settings (windows 10) and put there uefi setting on restart. Its booting without uefi at all.Tried to press f2,f1,f8,f7,f12, del keys - nothing.Tried to update bios from lenovo site - still nothing, i cant access uefi bios.Tried to install Windows 8, Windows 8.1 - cant boot into uefi of get uefi bios.What I'm doing wrong, direct me please? p.s. I'm using lenovo Z580.

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Relevance 87.33%

I have a new Precision 7710 with a 2.5 inch 1GB SATA SSD (system boot=Disk0) and a 1GB NVMe PM951 SSD.
I have been attempting to install Windows Server 2012R2 on the second, M.2 SSD (Disk1) into a GPT, NTFS partition.
Since this system has no DVD, I made a bootable UEFI thumb drive with the contents of the .iso installation for Server 2012R2.
The thumb drive boots OK and I can begin installation, but when it comes to choosing the target for installation, the M.2 SSD is not visible in setup.
The M.2 drive is clearly visible inside Windows 10 Pro as the D: drive.
So...I mounted the .iso setup file in Windows 10 and ran setup.exe. The install began and could see the target M.2 drive, and began loading files on the second SSD. It then attempted the first of several restarts that come with this process with the new Server 2012 R2 environment.
It sucessfully modified the Windows Boot Manager before the restart, then restarted, and the setup program gave an error because it could not find the target partition on the second SSD.
The setup environment then modified the Boot Manager to "Windows Setup Rollback" and proceeded to enter an infinite loop, attempting to delete files from the unreachable M.2 drive. I manually choose Windows 10 on the boot menu, and once booted changed Windows 10 back to the default OS.
I've tried several things (turning off Secure boot, changing from UEFI to legacy bios--it won't boot at all that way) , but I can't get that second disk t... Read more

Answer:Precision 7710 UEFI Bios and pre-boot does not detect second SSD (NVMe PM951) can't install Windows on it for dual boot

You're going to need to build a new set of boot media with NVMe drivers.
www.nvmexpress.org/.../

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What is UEFI Boot Source means and why some people disable this feature?

Regard,
Thanks.

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Relevance 86.92%

Say I install Windows as Legacy, can I later change it to UEFI? Or doing so will require another clean install? Thanks.

Answer:Changing a Legacy system to UEFI

For UEFI disable Legacy in BIOS, boot the Win7 DVD as a UEFI device. This change means the old install won't boot and needs to be deleted along with all other partitions to force the installer to change the HD format to GPT format - be sure to unplug all other HD's first.

So for UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with - Windows 7 Forums. For install via flash stick special steps must be done from UEFI Bootable USB Flash Drive - Create in Windows

Or to Bypass UEFI to Install WIn7 for a normal MBR install.

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Belarc reports UEFI: American Megatrends Inc. P11-B2
Operating System: Windows 10 Home (x64) Version 1511 (build 10586.494)
Installed: 4/27/2016 5:58:22 AM Servicing Branch: Current Branch (CB)
Boot Mode: UEFI with successful Secure Boot.

This is my brother?s computer: originally it was Win8, upgraded to Win8.1 and then in Apr to Win10.
--- The computer runs OK and I?ve shown him how to use MRF to create system image backups.
--- Today Aug 8 we tried to test recovering yesterday?s Aug 7 system image backup.
--- It didn?t go well at all.
--- The MR recovery DVD-RW didn?t boot up in order to test it.

I thought of disabling Secure Boot to see if that was blocking the MR bootable Rescue DVD-RW.

However we weren?t able to boot into either the UEFI BIOS or Boot Menu.
--- According to our notes DEL is used to boot into the UEFI BIOS and F12 is for the Boot Menu.
--- However when booting up: in less than a split second something scrolls up but the computer immediately boots into Windows to log in.
--- That?s much too fast to get into the UEFI BIOS or Boot Menu.
--- Please help us figure out what to do.

Following that I?ll have to learn how to ensure proper system image backups and recovery using MRF.
--- I don?t recall any issues when I had Win7 but re-training myself makes sense to me because it?s obvious I don?t understand it well.
--- For now I?m going to completely uninstall MRF from his computer and hope to start over with a clean slate.

Answer:Cannot boot into UEFI BIOS or Boot Menu

Try F2 or F8 while Powering ON.. (which you might already Have). If no go update BIOS(which you might already have).

Assuming you have Windows 10 or Windows 8.1 on computer.. Do a Shift + Restart >> Troubleshoot >> Advanced Options >> Change UEFI firmware settings...Restart.
U should be be able to boot in BIOS.

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Relevance 85.28%

Belarc reports UEFI: American Megatrends Inc. P11-B2
Operating System: Windows 10 Home (x64) Version 1511 (build 10586.494)
Installed: 4/27/2016 5:58:22 AM Servicing Branch: Current Branch (CB)
Boot Mode: UEFI with successful Secure Boot.

This is my brother?s computer: originally it was Win8, upgraded to Win8.1 and then in Apr to Win10.
--- The computer runs OK and I?ve shown him how to use MRF to create system image backups.
--- Today Aug 8 we tried to test recovering yesterday?s Aug 7 system image backup.
--- It didn?t go well at all.
--- The MR recovery DVD-RW didn?t boot up in order to test it.

I thought of disabling Secure Boot to see if that was blocking the MR bootable Rescue DVD-RW.

However we weren?t able to boot into either the UEFI BIOS or Boot Menu.
--- According to our notes DEL is used to boot into the UEFI BIOS and F12 is for the Boot Menu.
--- However when booting up: in less than a split second something scrolls up but the computer immediately boots into Windows to log in.
--- That?s much too fast to get into the UEFI BIOS or Boot Menu.
--- Please help us figure out what to do.

Following that I?ll have to learn how to ensure proper system image backups and recovery using MRF.
--- I don?t recall any issues when I had Win7 but re-training myself makes sense to me because it?s obvious I don?t understand it well.
--- For now I?m going to completely uninstall MRF from his computer and hope to start over with a clean slate.

Answer:Cannot boot into UEFI BIOS or Boot Menu

Try F2 or F8 while Powering ON.. (which you might already Have). If no go update BIOS(which you might already have).

Assuming you have Windows 10 or Windows 8.1 on computer.. Do a Shift + Restart >> Troubleshoot >> Advanced Options >> Change UEFI firmware settings...Restart.
U should be be able to boot in BIOS.

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Hi, as for my problem, my laptop is just stuck in this black screen not even loading anything even the lenovo logo. Power is ON, but nothing is happen and only shows the black screen. It happened when i decided to change the boot mode from uefi to legacy. I can't access bios to undo the boot mode cause as I said it is stuck in black screen. How can I reset the bios?

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Relevance 84.05%

Hi, as for my problem, my laptop is just stuck in this black screen not even loading anything even the lenovo logo. Power is ON, but nothing is happen and only shows the black screen. It happened when i decided to change the boot mode from uefi to legacy. I can't access bios to undo the boot mode cause as I said it is stuck in black screen. How can I reset the bios?

Answer:Lenovo G40-30 Black Screen in start up after Changing boot mode to legacy

Hello and welcome,
 
Have you tried turning it on via the Novo button instead of the main power button?
 
Z.

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Relevance 83.64%

Hi, I am using a Lenovo Y50-70 Laptop. Lately, I installed a Samsung Evo 850 SSD and made it a dual boot with Windows 10 and OpenSUSE Tumbleweed. After few months I tried to install another operating system but any kind of USB bootable device is not recognized by the system. I tried resetting the BIOS settings removing the battery and it didn't work. So as an experiment I removed the SSD and reinstalled the HDD(with the operating system), and then I did reset BIOS settings again. HDD is detected by the system, it is displaying in the BIOS settings, but the boot entries from SSD is still visible and boot entries from the HDD are not detected. Please help.
 
Mod's Edit: System model added to the front of Subject line to improve visibility / clarity.
 

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Relevance 83.64%

Hi, I am using a Lenovo Y50-70 Laptop. Lately, I installed a Samsung Evo 850 SSD and made it a dual boot with Windows 10 and OpenSUSE Tumbleweed. After few months I tried to install another operating system but any kind of USB bootable device is not recognized by the system. I tried resetting the BIOS settings removing the battery and it didn't work. So as an experiment I removed the SSD and reinstalled the HDD(with the operating system), and then I did reset BIOS settings again. HDD is detected by the system, it is displaying in the BIOS settings, but the boot entries from SSD is still visible and boot entries from the HDD are not detected. Please help.
 
Mod's Edit: System model added to the front of Subject line to improve visibility / clarity.
 

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Relevance 83.23%

This weekend I will try to do a clean install of Win 10 again, from Win 7. Have to try som new methods to see if I can get my computer running flawlessly with Windows 10.

I will use the clean install tutorials from this forum. I hav two options, with or without UEFI installed?

What about this thing with EFI, UEFI, Legacy BIOS? How much impact will this have on my computer regarding a flawlessly Win 10 setup?

I don't know anything about this, other than UEFI is the newest standard regarding BIOS.

When I look into my boot setup, it says, 1. Boot Device - [EFI Device].
If I open Diskmanagement, this is the picture:
Should I use the tutorial with or without UEFI when I do a clean install?

Answer:EFI, UEFI, Legacy BIOS.......

Your OS seems to be currently installed in Legacy Mode, that means your drive is probably formatted using a scheme called MBR. For Windows to boot in UEFI mode, it required the drive to be formatted using a different scheme called GPT.
If you can, backup the drive and reformat it to GPT if you want UEFI.

As far as the benefits go, Legacy is old, UEFI is new. It's faster, looks prettier while booting :P. Thats pretty much it for the average consumer.

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As the heading says how to know my Bios has Uefi boot or legacy boot??
 

Answer:Is my BIOS Legacy or UEFI?

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My hard disk is broken but the computer can't boot from my new replacement hard drive.  I have checked the Bios setting and the legacy boot option is locked.  I disabled secure boot but it still doesn't allow  me to enable legacy boot.  I downloaded the updated BIOS .exe (sp70481.exe) file from HP website but I am not sure if I can flash the BIOS using that file.  Is there anyway that I can enable the legacy boot option so that I can boot from my hard disk?  I appreicate any advise and suggestion.  Thank you.

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Hi there, Here is the issue. About three days ago, I wanted to reformat my Laptop. I was on Windows 10 at this point. For some stupid reason I downgraded to windows 8.1.... Luckily for me I have a save of windows 10 on my usb. So the problem is that I don't know how to access the parameter for unlock legacy boot order in Bios.Yes I know that I have to enable it in the Bios but I browser all over Internet to see example of this case whit this specific Bios cause it's not like Phoenix Bios or Insyde Bios... That is why I ask you directly how do I activated that to change legacy boot order ?  Thanks very much for the reply !Asher0004  Here some specific info about my computer : MiniToolBox by Farbar  Version: 17-06-2016Ran by Julien (administrator) on 01-08-2016 at 11:44:50Running from "C:\Users\Julien\Downloads"Microsoft Windows 8.1  (X64)Model: HP ProBook 650 G1 Manufacturer: Hewlett-PackardBoot Mode: Normal***************************************************************************========================= Flush DNS: ===================================Windows IP ConfigurationSuccessfully flushed the DNS Resolver Cache.========================= IE Proxy Settings: ==============================Proxy is not enabled.No Proxy Server is set."Reset IE Proxy Settings": IE Proxy Settings were reset.========================= Hosts content: ========================================================== IP Configuratio... Read more

Answer:Legacy Boot Order in Bios

@Asher0004? Go to Advance then Boot Options. BIOS Simulator here. http://h20464.www2.hp.com/results.htm?SID=5405400&MEID=C5343471-BBE6-4005-9DC8-0E40D6D060FB REO

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After disabling Secure Boot and restarting my P50,  I do not have the option to select a Legacy boot in the BIOS Startup tab.  The UEFI/Legacy Boot option is disabled and shows UEFI Only. Any help is truly appreciated.  Thanks.

Answer:P50 BIOS 1.35 not allowing Legacy boot

BIOS screenshot

























IMG_0036.JPG ?1387 KB

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This is somewhat of a follow on to my earlier post dealing with migrating the OS to an SSD.  After havinig cloned the OS from the 2TB HDD, I wanted to boot from the SSD.  In the old days I would have gone to BIOS and from there selected boot priority of the various devices.  In this instance, I encountered UEFI and could not figure out how to change boot priority.  I saw options for legacy boot, some messages about disabling secure boot, and I was afraid to touch either.   So....I just swapped the disk cables and booted from the SSD.  
Still, I have the question, how can I change the boot priority?  Is there some Dell manual that gives a good explanation of the UEFI interface for me to study?  

Answer:UEFI (?) changing boot drive? XPS 8900

Tap F12 as soon as you reboot to access the Boot Menu and select the boot device. Don't wait for any screen.

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Hi, i try since two days to reinstall win 10 on my e535. Problem is the BIOS/UEFII'm on version 2.51 (i think i updated it once because of problems with fan and battery drain)the Problem is:  cannot access bios on normal ways (presing ENTER, F1, etc) also the message, which button i have to press does not appear. I tried https://forums.lenovo.com/t5/ThinkPad-11e-Windows-E-and-Edge/Cannot-access-Uefi-Bios-anymore-on-E535.... After unplugging Power, battery and bios battery i can access it after the date/time error message occurs. But all changes made are not saved. (why is the solution "someotherguy" has not posted to the forum?)tried updating it to 2.52 in several ways:from win 10 with the update tool -> Blackscreen after reboot. -> unplugging Power, battery and bios battery -> 2.51 againfrom bootable CD -> after restart still version 2.51installed win 8 -> tried update tool -> same as win10contact support -> first question: bank account (btw: nice costumer support, Lenovo)hope somebody can help me.  P.S.: Yes, I can install windows by erasing the hard disk and then i can select from where to boot. But that is not a solution. I want to install Linux in parallel and therefore it would be nice to get back a working BIOS/UEFI. Hope someone can help. Thank you

Answer:E535 BIOS Problems accessing/updating/changing settings accessing and boot from menu

The problem from 2012 was fixed by a BIOS update a long time ago.  I think you must be having some different issue today.  Anyway, please try to get into BIOS setup again and then load default settings (press F9) and save and exit (press F10).  See if that fixes your issue.

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Hello,

I've installed Windows 10 and Ubuntu using UEFI.
But, now I created a bootable USB for a Linux that does not support UEFI, but only Legacy.
I mean, when I plug the USB to my laptop, the UEFI does not recognize it, only the Legacy BIOS does.
Is it possible to simply proceed to install the other Linux using Legacy mode? Or it will cause problems?

Thanks

Answer:Installing some OS's in UEFI and some using Legacy BIOS

I am never a fan of using dual boot. I have Windows 10 installed on a separate GPT SSD and Linux installed in MBR SSD and run them separately using Boot Menu so they are completely independent from each other.

I did mention in your other thread that dual booting using MBR is preferable which you can set the Windows boot manager and GRUB boot loader separately. The traditional way is Linux override the MBR and took over the booting process for both Windows & Linux. The non traditional way is to put the GRUB Boot loader in its own partition then use Easy BCD to set up the dual boot, this way they are independent so if there's an update/upgrade from either one, you won't break anything. In addition, you'll get a nice GUI dual boot Menu from Windows, not the ugly GRUB.

Here's an example:

GRUB controls the booting process for both Windows and LinuxPut GRUB in its own partition and use Easy BCD to set up dual boot.
NOTE: During Linux installation, you have to tell Linux not to use sda (MBR in Windows) but its own partition.

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Whats the Different with Legacy Bios / UEFI ?













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Answer:Whats the Different with Legacy Bios / UEFI ?

As for the questions about UEFI in general - basically, UEFI is a replacement for BIOS. Without going into technical details, the most important difference is that UEFI is 64-bit, while BIOS works in 16-bit real mode. This adds certain amount of latency in the boot process (and resume from sleep) because your 64-bit processor will simulate 286 CPU from the power on all the way until your OS starts booting, only then your OS will switch it in 64-bit mode. New Windows 8 PCs don?t include the traditional BIOS. They use UEFI firmware instead, just as Macs have for years. Rather than have modern PCs wait several seconds for a key press and delay their speedy boot process, you?ll have to access a boot option menu after booting into Windows. 

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I bought a brand new Sony S series and it was shipped with windows 7 and boots in UEFI mode. I have encryption software I need to install, and it's not compatible with UEFI mode. In my bios I see the option to change the boot mode to legacy, but when I do that and restart the computer I get this message 'operating system not found'. How can I run my computer in legacy mode? Do I have to set the bios to legacy and re-install windows?

Answer:UEFI/Legacy bios issue

1) Install encryption software that supports UEFI.

2) Reinstall in legacy mode.

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How do I go from UEFI to legacy BIOS in a B50-70?The deafult is UEFI I presume.

Answer:How to change from UEFI and legacy BIOS? B50

Hi there, Lenovoman -
 
Thank you for writing in to the Lenovo Forum - happy to have you here today
 
Here?s how:
 
Step 1: Turn on or reboot your Lenovo laptop, hold down F2 shortcut until you see the BIOS screen.  Use arrow keys to highlight Boot tap.
 
Step 2: Highlight Boot Mode, press Enter, swap from "UEFI" to "Legacy Support".
 

 
Step 3: Press Fn+F10 keyboard shortcut, choose Yes, and press Enter to save the boot settings.
 
Update us how it goes.
 
 
 
 
Regards,
 
Tap that kudos button if I helped  If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"!

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This computer came with WIn7 and was upgraded to Win10. I would like to make it a dualboot (with Windows as the MBR) with Ubuntu. However, My BIOS is "Legacy" and I already have 4 partitions (the unused space is not usable by Linux). Can this laptop's BIOS be upgraded to UEFI without reinstalling Windows (I want to preserve all my applications and settings in WIndows). If so, can you point me to instructions in detail? If not, recommendations for any alternatives, such as what to do (& how) with the 3 partitions other than WIndows (C: is the main WIndows partition of course; D: is Recovery; I have no idea what the other two partitions are since they do not appear in Explorer and E: is the DVD).

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Hello,

I've installed Windows 10 and Ubuntu using UEFI.
But, now I created a bootable USB for a Linux that does not support UEFI, but only Legacy.
I mean, when I plug the USB to my laptop, the UEFI does not recognize it, only the Legacy BIOS does.
Is it possible to simply proceed to install the other Linux using Legacy mode? Or it will cause problems?

Thanks

Answer:Installing some OS's in UEFI and some using Legacy BIOS

I am never a fan of using dual boot. I have Windows 10 installed on a separate GPT SSD and Linux installed in MBR SSD and run them separately using Boot Menu so they are completely independent from each other.

I did mention in your other thread that dual booting using MBR is preferable which you can set the Windows boot manager and GRUB boot loader separately. The traditional way is Linux override the MBR and took over the booting process for both Windows & Linux. The non traditional way is to put the GRUB Boot loader in its own partition then use Easy BCD to set up the dual boot, this way they are independent so if there's an update/upgrade from either one, you won't break anything. In addition, you'll get a nice GUI dual boot Menu from Windows, not the ugly GRUB.

Here's an example:

GRUB controls the booting process for both Windows and LinuxPut GRUB in its own partition and use Easy BCD to set up dual boot.
NOTE: During Linux installation, you have to tell Linux not to use sda (MBR in Windows) but its own partition.

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Hi,I have PACKARD BELL IMEDIA S2883 with preinstalled Windows 8.1. BIOS is UEFI and i can't fint option to change it to Legacy BIOS. In UEFI it's won't detect legacy boot devices even with Secure boot option disabled and Legacy USB enabled. Is there any way to use standart Legacy BIOS? Any help will be appreciated!











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Answer:How to change from UEFI to Legacy BIOS?

Hi ANONIMNIQ,
 
Could you tell me what your current BIOS version is? Also, could you send me a private message with your Serial Number? I'll see what I can track down for you.
Cory

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Hello,

Right before I performed a clean install of Windows 8.1 x64 on my Inspiron 3520, I switched to the Legacy BIOS *facepalm*.

When I enter the legacy BIOS and enabled "secure boot", I performed a restart that gave the following message "internal hard disk drive not found, to resolve this issue, try to reseat the drive. No bootable devices--strike F1 to retry boot, F2 enter setup menu, F5 enter PSA". Of course, when I go back into the BIOS and disable secure boot, it reverts back to legacy and boots up Windows 8 just fine. What I'd like to know is, how can I revert back to UEFI so I can change the boot-up option and perform a clean install under UEFI.

Any help would be greatly appreciated! I've found a couple articles but I just want to make sure I'm headed in the right direction and if maybe there is a safer and easier way to get this done...

Making the Switch to UEFI | sepago

https://social.technet.microsoft.com...n-to-uefi.aspx

Answer:Switching from Legacy BIOS to UEFI

UEFI (Unified Extensible Firmware Interface) - Install Windows 8 with

4. Press whatever key (ex: F11) it shows to boot to your motherboard's boot menu, and select to boot from the listed UEFI DVD or UEFI USB. (see screenshot below)

Secure Boot

Secure Boot only work in UEFI boot mode, when you enable Secure Boot in your PC's UEFI settings.

Secure Boot protect users from rootkits and other low-level malware attacks by blocking unauthorized (non-signed) executables and drivers from being loaded during the boot process.

Protecting the pre-OS environment with UEFI - Building Windows 8 - Site Home - MSDN Blogs

Secure Boot - Enable or Disable in UEFI

Secure Boot - Confirm Enabled or Disabled in Windows 8

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Hi,I have PACKARD BELL IMEDIA S2883 with preinstalled Windows 8.1. BIOS is UEFI and i can't fint option to change it to Legacy BIOS. In UEFI it's won't detect legacy boot devices even with Secure boot option disabled and Legacy USB enabled. Is there any way to use standart Legacy BIOS? Any help will be appreciated!










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Answer:How to change from UEFI to Legacy BIOS?

Hi ANONIMNIQ,
 
Could you tell me what your current BIOS version is? Also, could you send me a private message with your Serial Number? I'll see what I can track down for you.
Cory

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Hi, I installed WIndows 10 using UEFI but  couldn't disable Legacy support boot mode in the BIOS.If I disable Legacy support the PC will beep 6 times and red led flashs on the power button. I don't know if anyone had encountered this problem before or have a solution for it? Help please! Cheers  

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I am trying to install Windows 7 from a DVD to an HP 19-2113w All-in-One with Windows 8.1 as the factory install. I have entered the BIOS, turned off Secure Boot, restarted, and entered the code to confirm that I want to disable Secure Boot. Upon restarting and going back into the BIOS, Secure Boot shows it is "Disabled." HOWEVER -- when I then go into the boot options and try to enable the legacy boot devices, it gives me a message saying "You must disable Secure Boot before you may configure this option." As I previously stated -- Secure Boot shows "Disabled" when I check under the security tab.  How much more disabled can it get?  Am I missing something here?  Is there any other way to install Windows 7 from a DVD onto this computer?

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I bought a brand new HP Pavillion 17G053US from Office Depot.
It came with OEM installed win 8.
I did a fresh install of win 8.1 pro x64.
I had to do this with Legacy Support enabled, and secure boot disabled.
I used an 8 GB USB 2.0 stick for the install, the win 8.1 iso image was applied using rufus 2.3.
During the install, I reformatted the HD, removing all the OEM partitions.
I also used diskpart to convert the format of the HD from GPT to MBR.
The installation seems successful, except for a strange WLAN issue (extremely limited range despite loading the drivers).
I would also like to boot in UEFI to benefit from the faster start up times, etc.
BUT if I change the BIOS config by disabling legacy support, then it will no longer boot from HD.
The resulting error message says something to the effect of "please install an OS on the HD"
I suspected that perhaps this may be due to my converting the HD format from GPT to MBR,so I converted back to GPT, reinstalled, and still, must boot with Legacy support enabled....
 
Any suggestions?
Thanks in advance,

Answer:won't boot unless BIOS Legacy Support is enabled

Hi jfirthsouth What are the options you used on RUFUS to create your bootable USB?

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Hi, i have the same problem as mentioned in some other threads on the forum:http://h30434.www3.hp.com/t5/Notebook-Operating-System-and-Recovery/Can-t-change-BIOS-settings-after... or http://h30434.www3.hp.com/t5/Notebook-Operating-System-and-Recovery/Can-t-change-BIOS-settings-after... I need to setup a PC to Win7, that has a trial Version of Windows 10 installed. My Bios Version is HP M60 2.14 and unfortunately, some bios options like legacy boot are greyed out.This means that I cannot use my Win7 USB Stick nor the DVD.I have setup an administrator password and also an MEBx password, but am not able to enable these options. In contrast to these other threads, where the solution was to login as guest user and then enter the admin password, i do not get an login option before or in bios. I can startup directly into the Bios Options, but cant find an option to switch user. Thank you for your help!   

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I have been attempting to Enable Legacy boot and Disable Secure boot on this machine for a few days now.  My current BIOS version is N01 2.05 11/11/2015.  It is the oddest thing.  I am able to make some changes, save and have them succesfully change...but I cannot get legacy to enable and save.  Steps I have taken: - Cleared Secure Boot Keys - Reset- Selected Legacy Support Enable and Secure Boot Disable - Reset- Go back to BIOS --> Boot Options -->Attempt to Uncheck UEFI Boot Order (Unable to) --> Check to see if Legacy Boot is available and its a no go- Then I go back to the secure boot options and verify that none of my changes saved.  I have tried rolling the Bios Version back to 2.04 but that didn't make any difference so I put 2.05 back on it. I am attempting to get these machines to PXE boot to grab our school district's image, but I need Legacy boot enabled to do it.  After several attempts to get Legacy to enable I resolved to just use our Win7 Ent disk BUT can't do that as well as it says the "selected boot image did not authenticate."  Of course the fix I found for this was enable Legacy Boot....which I can't do.  I have looked through the forums and found a few possible solutions, but none of them have worked.  Please help!













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Answer:BIOS Refuses to Enable Legacy Boot

Thank you for the reply.  I ended up doing the following, which worked finally(not sure why):- Updated BIOS back to V 02.05- reset back to factory settings in the main menu- back into bios, set password and ownership tag as needed by the school district i work for--->reboot- back into bios disabled bootable devices usb and cd rom (as is school district tech policy)- went to secure boot options and selected in the drop down "enable legacy and disable UEFI boot" -->reboot- back to bios THIS TIME the check box next to legacy in the boot options menu was available.  I checked the box and was also able to uncheck UEFI boot -->reboot- f12 to PXE boot and like magic it finally worked Again, this is very similar to the process I tried in the begining the only difference was the amount of reboots it took to get it accomplished.  I did have a similar issue with another 800 G2 and no matter what I did it would not PXE boot so I rolled the bios version back to 02.04, restored factory settings and did the process I just oultined above.  AND IT WORKED on that machine.  It is an inconsistant issue we are having with the 50 or so 800 G2s our district purchased this last month.   In any case we are able to get these machines to PXE boot using one of the two methods I just mentioned.  So we're good for now.  Thanks again for your reply.

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I have been attempting to Enable Legacy boot and Disable Secure boot on this machine for a few days now.  My current BIOS version is N01 2.15.  It is the oddest thing.  I am able to make some changes, save and have them succesfully change...but I cannot get legacy to enable and save.  Steps I have taken: - Cleared Secure Boot Keys - Reset- Selected Legacy Support Enable and Secure Boot Disable - Reset- Go back to BIOS --> Boot Options -->Attempt to Uncheck UEFI Boot Order (Unable to) --> Check to see if Legacy Boot is available and its a no go- Then I go back to the secure boot options and verify that none of my changes saved.  I am attempting to get these machines to PXE boot to grab our company's image, but I need Legacy boot enabled to do it.  After several attempts to get Legacy to enable I resolved to just try to PXE boot BUT can't do that as well as it says the "selected boot image did not authenticate."  Of course the fix I found for this was enable Legacy Boot....which I can't do. I tried a different method and still no different results. - Updated BIOS to V 02.15- reset back to factory settings in the main menu- back into bios, set password --->reboot- back into bios disabled bootable devices usb and cd rom - went to secure boot options and selected in the drop down "enable legacy and disable UEFI boot" -->reboot- back to bios to the check box next to legacy in the boot options menu ... Read more

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i bought a laptop customised from HIDevolution.com recently and by default, they have installed windows 8 in Legacy mode (in HIDevolution installed SSD). now i wish to switch to UEFI mode. will simple reset in windows 8 give me an option for changing the BIOS mode? please help

Answer:how to boot windows 8 in UEFI mode having Legacy mode now?

Changing from legacy to UEFI mode has to be done before installing Windows:http://technet.microsoft.com/en-us/...

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Hi All,

I'm having my first encounter with UEFI on a new(to me) HP Laptop with Windows 8.1. (excuse the noobiness)
I have read/Googled quite a bit and am trying to understand.
If I understand the basics of the UEFI BIOS and "Key" and OS/Software needs a matching "Key" to be able to install.
I understand that along with this, there is a new method of partitioning "GPT" to support the UEFI/Safe Boot/Key.

To my questions/quries,

1. I have a set of "Full Recovery Disks",
Which I assume are able to put the Laptop back to original even if disk is replaced,
So the recovery disks will re-create the disk partitions(GPT?) to work with UEFI..??

2. I want to be able to boot from USB to try Linux Live boots.
From what I have read, I need to disable "Safe Boot", and enable "Legacy" mode, is this correct..??
I do understand this will bypass the extra security that "Safe Boot" brings.

Not sure if I should do another post for this one, but here goes.?
I have a Retail Windows 8.0 Pro Install disk, unopened with Key.
Can I install that on this Laptop, or is it only for use on a machine with No OS.?
If it's a YES, am I right to assume that if I removed all partition from the disk, like it was new,
It would create the necessary partitions/format to work with the UEFI BiIOS..??

Many Thanks
Dave

Answer:UEFI Settings for USB Boot and Recovery.?

HP Laptop with Windows 8.1



1) yes, will reinstall Windows 8.1 x64 HP OEM version.

3) Why would you downgrade to Windows 8?

2) The right version of Linux will boot with Secure Boot & UEFI.

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what happened was that i set my computer to dual boot windows 10 and ubuntu which i've done a million times btw so i can almost do it with my eyes closed, lol anyways, my issue is that now, i can't load the UEFI settings and even worse than that, i can't boot anything through USB, it just freezes. i found that out because i was going to restore a clonezilla backup but my PC would just freeze everytime i tried to load it from USB which forced me to hard reset my computer. i've tried to load the UEFI settings in different ways, like pressing F2 when the computer first turns on, usually loads it but it didn't work and i've tried to load it through the Grub2 bootloader with no luck and i've even tried to load it through windows by going to settings and restarting to get to the settings that way.
This is when I try to boot into the UEFI settings from Windows

and this is what happens when I try to boot it through the Grub2 Bootloader:

I've tried google search after google search for days trying to find a solution with no luck. any help would be great! thanks in advance! what it does when I try to boot it by pressing F2 is that the screen turns black for a second then restarts and it'll get stuck in a reboot loop if i hold f2

Answer:Can't Boot into the UEFI settings no matter what I do

Try removing the CMOS battery, as that usually forces a jump to bios.

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I am choosing which OS to boot by changing the boot order in my BIOS. To me, this seems clean and simple. I built 32 bit XP on one disk, then removed that disk from my system, installed a different disk, and built 64 bit W7.

When both disks are installed, I change the boot order to select the OS I want, and each OS sees and can use the files on either disk.

Am I asking for trouble here, or is this as clean as I think it is? What I want is one set of user document files which can be used from whichever OS has been booted.

Answer:Choosing which OS to boot by changing BIOS boot order

  
Quote: Originally Posted by pander1203


I am choosing which OS to boot by changing the boot order in my BIOS. To me, this seems clean and simple. I built 32 bit XP on one disk, then removed that disk from my system, installed a different disk, and built 64 bit W7.

When both disks are installed, I change the boot order to select the OS I want, and each OS sees and can use the files on either disk.

Am I asking for trouble here, or is this as clean as I think it is? What I want is one set of user document files which can be used from whichever OS has been booted.



There are no problems with doing it that way its just a PITA. with minimal work you can have a bootloader where all you have to do is click the OS you want to run. You need to use a tool like bcdedit. there are instructions for itis use here BCDEDIT - How to Use .How this helps and let us know if you need help with anything

Ken

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How do you overide BIOS mode (Legacy to UEFI) And how can you tell which one you are in? Thanks in advance, Chef_D

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I have an Aspire M5 that is not bootable.  I ordered and received recovery discs from Acer.  When I boot using UEFI mode, I get the following error message... "Please boot this Recover Disc uusing legacy BIOS mode."  When I boot using legacy BIOS mode, I get this error message... "Restore Fail: This recovery system can only be used on "UEFI" mode.  Please press "OK" to restart the system immediately."  I attached screen shots of both.  My guess is something else is wrong that a recovery disc can't fix.  Any thoughts or suggestions on how to proceed?  Thanks!

Answer:Recovery not working - UEFI vs. Legacy BIOS

you need to completly wipe your HDD before restoring your PC. are you able to reach windows command prompt? (try to press shift+F10 keys at that screen)if so, try this:typediskpartthen on diskpart typelist disktake note of the correct disk ID to erasetypeselect disk x(x is the ID of your HDD to erase)typecleantype exit if not, you can create a bootable USB or CD (boot under legacy) with gparted that will jelp you erase your HDD:http://gparted.org/livecd.php

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